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This isn't specific to the plugins in this repo. I just want to
document it somewhere I can find it later.
Command redirection is a way to get the bot to highlight someone
else, other than the one who ran the command.
Imaginary conversation:
<newuser> How do I print number in C?
<oldguy> !man 3 printf
<bot> oldguy: printf(3): formatted output conversion
oldguy is using the bot to answer newuser's question. What
redirection does is:
<newuser> How do I print number in C?
<oldguy> !man 3 printf > newuser
<bot> newuser: printf(3): formatted output conversion
All that's changed is who gets highlighted (the <user>: stuff). The
syntax mimics the shell's I/O redirection, if you're familiar with
that.
The bits & pieces to make this work already exist in limnoria. The
user 'val' in libera #limnoria put them together (for which I owe much
thanks), I'm just documenting the process here.
The indented lines are bot commands. Run them in private (a /query or
/msg window).
First of all, you need these plugins loaded:
load Utilities
load Conditional
load Format
load MessageParser
(If you get "already loaded" errors, just ignore them)
Next, *get rid* of the prefix character:
config reply.whenaddressedby.chars ""
And use [] for nesting:
config supybot.commands.nested.brackets []
Now the preparations are complete, and you're ready to cast the
actual spell:
messageparser add global "^!(.+?)( *> *(\S+)\s*)?$" "cif [ceq \"$3\" [concat $ 3]] \"$1\" \"echo $3: [$1]\""
The above is one long line, and it's very sensitive to spacing, so
be cautious when copy/pasting it. In particular, there should be no
spaces after the any of the $ symbols *except* for the 3rd one, the
one that comes right after "concat".
After that, the !command syntax will work even though you've removed
the reply.whenaddressedby.chars entirely. And "!command > user" will
also work as desired, for all commands (including factoids). Actually
the spaces before and after the > are optional. "!command>user" works
just fine.
If you're using some other prefix char besides !, change it in the
'messageparser add' command. You could do this on a per-channel basis
by replacing 'global' with your channel (run the command once per
channel).
If you get message like 'Error: there is no command "> user"', you've
missed a step, or messed up the messageparser add command.
Note that there's no attempt to verify that the part after the >
is actually a valid IRC nick. You have to spell it correctly or use
nick-completion in your client. Typos don't hurt anything, but they
don't highlight the user, either.
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